| Countries of the World Quiz | 0 | - | 5.00 | 46,985,556 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,611 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,230 |
| Top World Languages | 0 | - | 4.92 | 814,166 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,644 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,055 |
| Busiest Airports in Europe | 0 | - | 4.91 | 145,003 |
| World's Busiest Airports | 0 | - | 4.94 | 210,797 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 134,414 |
| Countries with the Most Airports | 0 | - | 4.96 | 97,307 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 124,049 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 119,290 |
| Airport Codes Quiz #1 | 0 | - | 4.82 | 213,316 |
| Busiest Air Routes in the World | 0 | - | 4.54 | 37,992 |
| Boundary Waters | 0 | - | 4.92 | 88,085 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,854 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,396 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 71,679 |
| World Currency Quiz | 0 | - | 4.92 | 299,022 |
| Tourist Route of Europe | 0 | - | 4.24 | 42,787 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,084 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,820 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,314 |
| Busiest Airports in the United States | 0 | - | 4.54 | 134,828 |
| Landlocked Countries | 0 | - | 4.99 | 414,414 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,651 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,584 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,221 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,957 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,190 |
| Cities by Airports | 0 | - | 4.49 | 88,313 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,179 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,838 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,924 |
| Himalayan Countries | 0 | - | 4.95 | 135,637 |
| Andean Countries | 0 | - | 4.94 | 82,987 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,342 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,393 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,044 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,716 |
| Danube Countries | 0 | - | 4.97 | 71,159 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,868 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,616 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,656 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,561 |
| European Landlocked Countries | 0 | - | 4.99 | 145,860 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,326 |
| Countries with the Most Species | 0 | - | 4.99 | 95,289 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,477 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,228 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,396 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,005 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,644 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,010 |
| Countries in the Alps | 0 | - | 4.86 | 116,954 |
| Countries with the Most Tourists Per Capita | 0 | - | 4.28 | 81,838 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,657 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,419 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,081 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,491 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,269 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,070 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,671 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,824 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,563 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,130 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,224 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,089 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,518 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,811 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,815 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,236 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,721 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,301 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,877 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,731 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,932 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,672 |
| Largest Countries By Category | 0 | - | 4.97 | 156,889 |
| Countries by Countries | 0 | - | 4.96 | 62,340 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,843 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,309 |
| U.S. National Parks Map Quiz | 0 | - | 4.48 | 55,728 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,792 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,516 |
| Demonyms Quiz | 0 | - | 4.15 | 184,879 |
| Airport Codes Quiz #2 | 0 | - | 4.41 | 96,301 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,259 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,651 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,687 |
| Longest International Borders | 0 | - | 4.99 | 263,949 |
| Countries with Three Borders | 0 | - | 4.96 | 36,238 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,640 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,734 |
| Demonym of Every Country | 0 | - | 4.91 | 58,722 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,222 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,937 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,862 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,413 |
| Island Countries | 0 | - | 4.99 | 707,923 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,547 |
| Northernmost Countries | 0 | - | 4.99 | 358,153 |
| Countries of South America | 0 | - | 5.00 | 916,143 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,264 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,137 |
| "Land" Countries | 0 | - | 4.98 | 333,866 |
| Airports Named for People #1 | 0 | - | 4.46 | 55,708 |
| World's Biggest Airlines | 0 | - | 4.44 | 124,016 |
| Airline Logos | 0 | - | 4.45 | 140,045 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,191 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,641 |
| Countries with Megacities | 0 | - | 4.99 | 247,601 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,484 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,212 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,892 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,139 |
| Cities by Tourist Attraction #1 | 0 | - | 3.63 | 81,037 |
| Cities by Famous Street | 0 | - | 3.96 | 48,257 |
| Cities by Tourist Attraction #2 | 0 | - | 3.73 | 32,073 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,977 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,125 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,760 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,715 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,807 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,636 |
| Countries by Capital City | 0 | - | 5.00 | 66,842 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,439 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,999 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,489 |
| Moved Capital Cities | 0 | - | 4.96 | 73,672 |
| Countries by Official Language | 0 | - | 4.95 | 192,946 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,367 |
| Countries in their Native Language | 0 | - | 4.99 | 196,796 |
| Independence from Whom | 0 | - | 4.99 | 209,902 |
| Subdivisions by Country | 0 | - | 4.86 | 50,103 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,899 |
| Megadiverse Countries | 0 | - | 4.97 | 133,965 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,956 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,957 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,468 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,877 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,764 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,055 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,190 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,221 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,251 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,742 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,456 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,555 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,540 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,731 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,064 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,588 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,818 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,415 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,563 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,351 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,078 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,015 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,995 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,179 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,382 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,006 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,428 |
| Widest Countries East to West | 0 | - | 4.92 | 128,929 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,249 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,338 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,606 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,756 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,703 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,135 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,012 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,616 |
| Countries with Double Letters | 0 | - | 4.96 | 93,546 |
| Countries that End in N | 0 | - | 4.94 | 157,031 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,854 |
| Countries with Six Letters | 0 | - | 4.93 | 210,529 |
| Countries with W | 0 | - | 4.97 | 158,332 |
| Countries with Z | 0 | - | 4.98 | 288,058 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,652 |
| Countries That End in U | 0 | - | 4.95 | 119,578 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,732 |
| Countries that End in O | 0 | - | 4.92 | 158,610 |
| Countries that End in R | 0 | - | 4.87 | 118,327 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,894 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,260 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,448 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,570 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,115 |
| Countries That End in Y | 0 | - | 4.90 | 185,250 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,496 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,797 |
| Countries that End in I | 0 | - | 4.94 | 134,487 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,329 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,249 |
| Countries That End in NIA | 0 | - | 4.92 | 109,066 |
| Countries That End in BIA | 0 | - | 4.92 | 147,779 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,161 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,567 |
